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LG 43UF77 ZD Series Service Manual page 21

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4.2.3. Equipment connection MAP
Probe
* If TV internal pattern is used, not needed
4.2.4. Adj. Command (Protocol)
<Command Format>
START 6E
A
50
A LEN A 03 A
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) ) [Send: va 00 00\r\n]
▪ RS-232C Command used during auto-adjustment.
RS-232C COMMAND
[CMD
ID
DATA]
va
00
00
vb
00
00~ FE
wb
00
FF
4.2.5. Adj. method
(1) Auto adj. method
1) Set TV in POWER-ONLY mode using POWER ONLY
key
2) Zero calibrate probe then place it on the center of the
Display
3) Connect Cable (RS-232C to USB)
4) Select Model in "V-com adj. Program" and begin "V-com
adj."
5) When V-com adj. is complete (OK)
6) Remove probe and RS-232C to USB cable to complete
adj.
▪ V-com Adj. must begin as start command "va 00 00" , and
finish as end command "wb 00 ff"
▪ V-com adjust data(65" inch)
hex
Max
AB
Default
8D
Min
6F
(2) Manual adjustment. method
1) Set TV in Adj. mode using POWER ON.
2) Zero Calibrate the probe of Color Analyzer, then place it
on the center of LCD module within 10 cm of the surface.
3) Press ADJ key → EZ adjust using adj. R/C → 7. White-
Balance then press the cursor to the right(key ►).
(When right key(►) is pressed 216 Gray internal pattern
will be displayed)
4) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
5) Adjustment is performed in COOL, MEDIUM, WARM 3
modes of color temperature.
** G-fix adjustment
Adjust modes (Cool), Fix the G gain to 172 (default data)
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Co lo r Analyzer
RS -232C
Co m p ut er
RS -232C
RS -232C
Pat t ern Generat o r
Signal Source
CMD
A
00
A
VAL
A
CS STOP
Explanation
V-com pattern
V-com adj.(internal Flicker pattern)
V-com adj. completed
V-com Data
dec
171
141
111
and change the others (G/B Gain).
Adjust two modes(Medium / Warm), Fix the one of R/G/B
gain to 192 (default data) and decrease the others.
If internal pattern is not available, use RF input. In EZ Adj.
menu 7.White Balance, you can select one of 2 Test-
pattern: ON, OFF. Default is inner(ON). By selecting OFF,
you can adjust using RF signal in 216 Gray pattern.
▪ Adjustment condition and cautionary items
1) Lighting condition in surrounding area
Surrounding lighting should be lower 10 lux. Try to
isolate adj. area into dark surrounding.
2) Probe location
: Color Analyzer(CA-210) probe should be within 10 cm
and perpendicular of the module surface (80° ~ 100°)
3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes.
- In case of LCD, Back-light on should be checked using
no signal or Full-white pattern.
4.2.6. Reference (White balance adjusmtment
coordinate and color temperature)
▪ Luminance : 206 Gray
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Coordinate
Mode
x
Cool
0.271
Medium
0.286
Warm
0.313
▪ Standard color coordinate and temperature using CA-210(CH 14)
Mode
x
Cool
0.271 ± 0.002
Medium
0.286 ± 0.003
Warm
0.313 ± 0.002
4.2.7. EDGE & IOL LED White balance table
▪ Edge & ALEF LED module change color coordinate because
of aging time.
▪ Apply under the color coordinate table, for compensated
aging time.
▪ (Normal line) Edge & ALEF LED White balance table
- gumi(Mar.~Dec.) & Global
Model : (normal line)LGD, CMI
web
Aging
OS
time
x
2.0
(Min)
271
1
0-2
282
2
3-5
281
3
6-9
279
4
10-19
277
5
20-35
275
6
36-49
274
7
50-79
273
8
80-119
272
9
Over 120
271
- 21 -
Temp
y
0.270
13000 K
0.289
9300 K
0.329
6500 K
Coordinate
Temp
y
0.270 ± 0.002
13000 K
0.289 ± 0.003
9300 K
0.329 ± 0.002
6500 K
Cool
Medium
y
x
y
270
286
289
289
297
308
287
296
306
284
294
303
280
292
299
277
290
296
274
289
293
272
288
291
271
287
290
270
286
289
LGE Internal Use Only
∆uv
0.0000
0.0000
0.0000
∆uv
0.0000
0.0000
0.0000
Warm
x
y
313
329
324
348
323
346
321
343
319
339
317
336
316
333
315
331
314
330
313
329

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